president bashar al-assad wants do and indeed has to hang on to the capital if he is to stay in power. there are many experts who believe either way, he has decided to fight to the death. either if he tries to flow he will be killed by his own supporters who will feel betrayed him him or ultimately he will be killed by the rebels. this, while it does seem to be the end days for the bashar al-assad regime, it could yet stretch on for some days or even weeks. that because the rebels simply are not strong enough to defeat the syrian security forces in one battle. what we are seeing is an intense battle of attrition. most experts will tell you, his days are numbered. >> the big question on the international stage now, jonathan, will he use the chemical weapons at the last moment. >>jonathan: there are real concerns. a lot of people call him a cornered rat fighting to the death and therefore use every weapon in his arsenal. there are others, though, who think that assad is highly unlikely to do that, he has been wanted by everyone, including his allies, the russians, that it would be a gra